I've had several of these.
16 oz with lid off , 14 oz on.
Walls are double layer but not thick & easily held.
Use for coffee or cold drinks.
Dishwasher safe .
The lid seals, can turn upside down without leakage.
Bought for LostArrow hunting camp with 2 porches, 3 decks ,a skinning rack & 4 cabins we alternate eating in when I've had a few adult beverages we all misplace things or knock glasses over.
These are available at your local dollar tree for $1.00 before tax !!! Quality control not the best out of 10 I've bought for myself & presents 3 have been defective.
But hey an insulated Dixie cup with lid is $0.50!